Volume 2 is a tool that lets you control your computer's volume using your mouse wheel or keyboard. To download this software, go to Softonic.com and enter "volume 2" in the search text box. On the search results page, click the Download button beside Volume 2, and click Free Download.
Another volume control tool for Windows is Power Mixer. To download this tool, go to Softpedia.com and enter "power mixer" in the search text box. When the search results appear, click the link for Power Mixer 3.8. On the detailed information page, click the Download Now button to download this software.
Volume Concierge is also a free volume control tool for Windows. You can go to Softorino.com, click the Volume Concierge link in the Our Products section at the bottom of the page, and click the Free Download button to download it.